From e5532ef8869a7ff1c4ece55fda9532a17f6e3e40 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20Rodr=C3=ADguez?= <deivid.rodriguez@riseup.net>
Date: Sun, 25 Jul 2021 16:11:18 +0200
Subject: [PATCH] Lazily load `shellwords` library

---
 lib/rubygems/ext/builder.rb          | 1 +
 lib/rubygems/ext/ext_conf_builder.rb | 3 +--
 lib/rubygems/ext/rake_builder.rb     | 3 +--
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/lib/rubygems/ext/builder.rb b/lib/rubygems/ext/builder.rb
index 14d5dde41372..7934309901ca 100644
--- a/lib/rubygems/ext/builder.rb
+++ b/lib/rubygems/ext/builder.rb
@@ -57,6 +57,7 @@ def self.run(command, results, command_name = nil, dir = Dir.pwd)
         p(command)
       end
       results << "current directory: #{dir}"
+      require "shellwords"
       results << command.shelljoin
 
       require "open3"
diff --git a/lib/rubygems/ext/ext_conf_builder.rb b/lib/rubygems/ext/ext_conf_builder.rb
index 1f73796351a5..3ca3463615d8 100644
--- a/lib/rubygems/ext/ext_conf_builder.rb
+++ b/lib/rubygems/ext/ext_conf_builder.rb
@@ -5,8 +5,6 @@
 # See LICENSE.txt for permissions.
 #++
 
-require 'shellwords'
-
 class Gem::Ext::ExtConfBuilder < Gem::Ext::Builder
   def self.build(extension, dest_path, results, args=[], lib_dir=nil, extension_dir=Dir.pwd)
     require 'fileutils'
@@ -40,6 +38,7 @@ def self.build(extension, dest_path, results, args=[], lib_dir=nil, extension_di
       begin
         # workaround for https://github.com/oracle/truffleruby/issues/2115
         siteconf_path = RUBY_ENGINE == "truffleruby" ? siteconf.path.dup : siteconf.path
+        require "shellwords"
         cmd = Gem.ruby.shellsplit << "-I" << File.expand_path("../../..", __FILE__) <<
               "-r" << get_relative_path(siteconf_path, extension_dir) << File.basename(extension)
         cmd.push(*args)
diff --git a/lib/rubygems/ext/rake_builder.rb b/lib/rubygems/ext/rake_builder.rb
index 64a6c0eb8081..fed98e741c08 100644
--- a/lib/rubygems/ext/rake_builder.rb
+++ b/lib/rubygems/ext/rake_builder.rb
@@ -5,8 +5,6 @@
 # See LICENSE.txt for permissions.
 #++
 
-require "shellwords"
-
 class Gem::Ext::RakeBuilder < Gem::Ext::Builder
   def self.build(extension, dest_path, results, args=[], lib_dir=nil, extension_dir=Dir.pwd)
     if File.basename(extension) =~ /mkrf_conf/i
@@ -16,6 +14,7 @@ def self.build(extension, dest_path, results, args=[], lib_dir=nil, extension_di
     rake = ENV['rake']
 
     if rake
+      require "shellwords"
       rake = rake.shellsplit
     else
       begin